after that point, the obama administration was criticizeded for not responding strongly enough to that threat. this time, officials say they're acting out of what they call an abundance of caution. something else that's interesting that happened as a result of benghazi. we know the pentagon approved a marine combat team to respopd if there's a crisis. roughly 1500 marines on ships in the red sea. around 500 are split between italy and spain. n now, they are posted there full time. to respond if something happens in the area. that's something different than what happened when that attack in benghazi happened just about 11 months ago. >> thanks so much from washington. >>> the travel alert will impact americans all over the world. nick is live at atlanta's hartsfield jackson airport. so, you've been talking to passengers today. are they saying anything unusual about their travel day? >> if you're traveling dmesically this weekend, you probably won't notice a change at all. we just got back from inside the terminal, it's business as usual. there aren't any longer delay, longer lines, noth